1 Atoll (an oceanic low island of coral origin, e.g. Ulithi) 20
2 Volcanic high island (an oceanic island of volcanic origin, e.g. Hawaii) 61
3 Tectonic (an oceanic island formed by tectonic uplift, e.g. Macquarie Island) 14
4 Continental island (an island situated on a continental shelf, e.g. Taiwan) 37

Island type (island with largest culture population or largest island if unknown)

Islands that are connected by tidal zones should be considered one island. However, when measuring island size, only areas of land that are permanently above sea level should be included.

Culture Value Source